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   <title>B.2.&nbsp; hbase.regionserver.codecs</title><link rel="stylesheet" href="css/freebsd_docbook.css" type="text/css"><meta name="generator" content="DocBook XSL-NS Stylesheets V1.75.2"><link rel="home" href="book.html" title="The Apache HBase Book"><link rel="up" href="compression.html" title="Appendix&nbsp;B.&nbsp;Compression In HBase"><link rel="prev" href="compression.html" title="Appendix&nbsp;B.&nbsp;Compression In HBase"><link rel="next" href="lzo.compression.html" title="B.3.&nbsp; LZO"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">B.2.&nbsp;
    <code class="varname">
    hbase.regionserver.codecs
    </code>
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    <code class="varname">
    hbase.regionserver.codecs
    </code>
    </h2></div></div></div><p>
    To have a RegionServer test a set of codecs and fail-to-start if any
    code is missing or misinstalled, add the configuration
    <code class="varname">
    hbase.regionserver.codecs
    </code>
    to your <code class="filename">hbase-site.xml</code> with a value of
    codecs to test on startup.  For example if the 
    <code class="varname">
    hbase.regionserver.codecs
    </code> value is <code class="code">lzo,gz</code> and if lzo is not present
    or improperly installed, the misconfigured RegionServer will fail
    to start.
    </p><p>
    Administrators might make use of this facility to guard against
    the case where a new server is added to cluster but the cluster
    requires install of a particular coded.
    </p></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="compression.html">Prev</a>&nbsp;</td><td width="20%" align="center"><a accesskey="u" href="compression.html">Up</a></td><td width="40%" align="right">&nbsp;<a accesskey="n" href="lzo.compression.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Appendix&nbsp;B.&nbsp;Compression In HBase&nbsp;</td><td width="20%" align="center"><a accesskey="h" href="book.html">Home</a></td><td width="40%" align="right" valign="top">&nbsp;B.3.&nbsp;
    LZO
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